Is this piece of information relevent to my problem? https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_X250#Mouse
Mouse The touchpad and TrackPoint work out of the box, but the physical buttons for the trackpoint do not. You will need to install xf86-input-synaptics. Note: The most recent Linux kernels (at least 4.0.5) support TrackPoint buttons out of the box. The following information pertains only to older versions of the kernel. If you would rather not install a recent kernel, there is a work around for Linux 3.19.2-ARCH. If you add options psmouse proto=imps to /etc/modprobe.d/x250.conf, you can force the mouse module to use a more basic protocol than the built in one for the TrackPoint, which needs a patch. The effect is that the touchpad and mouse are treated as one device, but synaptics is not supported. If you want two finger scrolling, for example, you will need to either deal with the broken TrackPoint buttons are install the new module. Jont ALlen -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1506817 Title: left TPP/2 IBM TrackPoint "sticks on" randomly (X250 15.04) Status in linux package in Ubuntu: Confirmed Bug description: I have reported the details of this problem at https://answers.launchpad.net/ubuntu-certification/+question/272142 As summarized on that question: X250 analysis: I used the command on the X250 evtest /dev/input/event15 | grep EV_KEY I can see the bug, as follows: I click on button 1 (left) over and over. When I push the button down, I see it register as 1, and when I let go of the key, it registers as a 0. The bug is that every now and then (once every 20 clicks), when I let go of the left mouse button (BIN_LEFT), it does not return to state 0 (it stays in state 1). This is highly random, but cant be triggered more often, by dragging a window, which I do with BIN_LEFT. I am using a brand new X250, purchased in late July 2015. The system was returned 3 times to IBM repair as I assumed this was a hardware error. Now with the above, it seems clear that this is a software issue. Ubuntu 15.04 apt-cache policy xserver-xorg-input-synaptics xserver-xorg-input-synaptics: Installed: 1.8.1-1ubuntu1 Candidate: 1.8.1-1ubuntu1 Version table: *** 1.8.1-1ubuntu1 0 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xserver-xorg-input-synaptics 1.8.1-1ubuntu1 ProcVersionSignature: Ubuntu 3.19.0-30.34-generic 3.19.8-ckt6 Uname: Linux 3.19.0-30-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.5 Architecture: amd64 CurrentDesktop: Unity Date: Fri Oct 16 04:52:03 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu InstallationDate: Installed on 2015-08-15 (61 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 20CMCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=5718b40f-944e-47a3-acda-04e29336d0bc ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-input-synaptics UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/19/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET36W (1.15 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CMCTO1WW dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CMCTO1WW dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.9-2ubuntu1~vivid2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.9-2ubuntu1~vivid2 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Fri Oct 16 03:31:10 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1079 vendor LGD xserver.version: 2:1.17.1-0ubuntu3.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506817/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
